Finding the Fourth Proportional to 399,121.14, 598,363.80 and 230,450.14
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Solution
The fourth proportional to 399,121.14, 598,363.80 and 230,450.14 is: 345,491.65
Step by Step Solution
- Step 1: Write the proportion equation
399,121.14 : 598,363.80 = 230,450.14 : x - Step 2: Convert to fraction form
399,121.14/598,363.80 = 230,450.14/x - Step 3: Cross multiply
399,121.14x = 598,363.80 × 230,450.14 - Step 4: Simplify right side
399,121.14x = 137,893,021,480.93 - Step 5: Solve for x
x = 137,893,021,480.93/399,121.14 - Step 6: Final answer
x = 345,491.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.